Focus the Mechanical Turk IFrame. Useful for many HITs, especially those that use keyboard controls.
// ==UserScript==
// @name Focus mTurk IFrame
// @namespace http://mturkconsultant.com
// @version 1.0
// @description Focus the Mechanical Turk IFrame. Useful for many HITs, especially those that use keyboard controls.
// @match https://*.mturk.com/mturk/*
// @copyright Public domain
// ==/UserScript==
var mturk_iframe = document.querySelector("iframe")
if (mturk_iframe){mturk_iframe.focus()}